JP4954245B2 - Drain plug unit - Google Patents

Description

  The present invention relates to a drain plug unit that is detachably provided to a drain port.

  As described in Patent Document 1, there is known a drain plug unit that is detachably attached to a drain port provided at the bottom of a wash bowl or the like. FIG. 10A is a side view showing a drain plug unit 910 described in Patent Document 1. FIG. In the drain plug unit 910, an upper pan dish 913 and a lower pan dish 914 are slidably mounted on a support shaft 912 having a drain plug 911 that opens and closes a drain port.

  Moreover, although the hair catcher is not provided directly under the drain plug, the hair catcher of the drain port described in patent document 2 is known. FIG. 10B is a perspective view showing a hair catcher 920 described in Patent Document 2. FIG. The hair catcher 920 is configured such that the entire radial collecting rib 923 is inclined in an umbrella shape. This hair catcher is composed of an inner member 922 having a radial collecting rib 923 inclined in an umbrella shape as a whole, and an outer member 924 having a collecting projection 925 on the outer surface, and the outer member 924 and the inner member 922. It is possible to disassemble it into

  In addition, although it is not a drain plug unit, as described in Patent Document 3, a hair catcher installed at a drain port to which a rubber plug is attached is known. FIG.10 (c) is a figure which shows a mode that the hair catcher 930 described in patent document 3 was installed in the drain outlet. The hair catcher 930 has a circular body 931 having a ring that can be hooked on a drain outlet and a plurality of rings inside, a shaft portion 932 inserted through the center of the circular body 931, and a radial bar. And a collector 933 fixed to the upper portion of the holding shaft portion 932. When the hair catcher 930 is installed at the drain outlet, the circular body 931 and the collection body 933 that are movable in the vertical direction come into contact with each other, and a plurality of rings of the circular body 931 and the collection body 933 are seen from above. It will be in the state which crossed the radial cross.

JP-A-11-61931 JP-A-10-88638 JP 2008-267041 A

In the drain plug unit provided at the drain port, when the collected matter such as the collected hair accumulates on the eye plate or the like, the drainage capacity is lowered. Therefore, it is necessary to remove the drain plug unit from the drain port and clean it.
The upper eye plate 913 shown in FIG. 10 (a) and the hair catcher 930 shown in FIG. 10 (c) need to be frequently cleaned because collected matter such as collected hair accumulates over the entire surface.
Since the lower eye plate 914 shown in FIG. 10A is inserted at a deep position from the drain port, it is considered that the waste water passes over the entire surface of the eye plate. Then, the collected matter is deposited over the entire surface of the eye plate. Further, even if the collected matter accumulates from the lowered central portion of the lower pan 914, the area through which the drainage passes becomes smaller as the collected matter increases.
The hair catcher 920 shown in FIG. 10B is also inserted at a deep position from the drain outlet, so that the drainage is considered to pass over the entire surface of the radial collection rib 923. Then, the collected matter is deposited over the entire surface of the radial collecting rib 923. Further, even if the collected matter accumulates from the lower outer portion of the radial collecting rib 923, the area through which the drainage passes becomes smaller as the collected matter increases.

  In view of the above, an object of the present invention is to provide a drain plug unit that can be less clogged than the conventional one.

In order to achieve the above object, the present invention is a drain plug unit that is detachably attached to a drain port,
A drain plug,
A shaft that is fixed to the upper end of the drain plug and inserted into the drain port from the lower end;
A drainage passage portion that has a hooking portion that catches on the drainage port and that allows the drainage to pass downward while collecting hair, is slidably attached to the shaft, and is vertically moved below the drainage plug. A movable eye plate,
A plurality of downward projecting portions projecting downward on the lower side of the drain plug and inserted into the drainage passage portion of the eye plate caught in the drain port are provided at intervals in positions surrounding the shaft. An eye plate insertion part fixed to the shaft or the drain plug,
The hair in the drainage is caught on the outside of the plurality of downward projections inserted into the drainage passage portion so as to surround the shaft.

  That is, the plurality of downward projecting portions of the eye plate insertion portion fixed to the shaft or the drain plug are inserted at positions surrounding the shaft with respect to the water passage portion of the eye plate caught in the drain port. The hair contained in the waste water that passes through the eye plate is caught on the outside of the plurality of downward protruding portions that are inserted in the drain passage portion around the shaft. Thereby, even if the collected matter accumulates on the eye plate and the eye plate insertion portion, the inside of the plurality of downward projecting portions of the eye plate can be passed for a while, and the area of the water passing region is unlikely to be reduced. . Therefore, the time during which a good drainage capacity is maintained is lengthened.

In the invention according to each claim, the drain plug unit includes a drain plug unit provided at a drain port of a bathtub, a sink, or the like, in addition to a drain plug unit provided at a drain port of a wash bowl.
The drainage is water containing hair.
The drainage passage part of the eye plate includes a hole and a gap.
The protrusion of the downward projecting portion includes projecting out of a strict vertical direction.
In order for the lower protrusion to be inserted into the drainage passage part of the eye plate, not only the lower end of the lower protrusion part comes out of the drainage passage part but also the lower end of the lower protrusion part remains at the position of the lower surface of the eye plate. Is also included.
The above-mentioned eye plate and the above-mentioned eye plate insertion part include those that collect foreign substances other than hair. Moreover, the eye plate and the eye plate insertion part may not stop all the hair.
The above-mentioned eye plate insertion part can be configured such that each downward projecting part protrudes from the distal ends of a plurality of bases provided radially about an axis, a structure in which each downward projecting part projects from a drain plug, etc. .

Moreover, the lower end part of the downward projecting part may be provided with a convex part that is convex in the direction opposite to the axis. When the drain plug unit is taken out from the drain outlet and the eye plate moves downward and the downward projecting portion comes out of the drainage passage portion, hair or the like is caught on the convex portion. Therefore, it is easy to remove the collected matter from the drain plug unit.
Here, the convex shape of the convex portion includes a bulging shape, a protruding shape, and the like.

  Further, when the drain plug unit is attached to the drain port, the drain plug unit is inserted into the drain passage portion of the eye plate, and when the drain plug unit is removed from the drain port, the drain port unit comes out of the drain passage portion of the eye plate. Also good. When the drain plug unit is removed from the drain port, the downward projecting portion comes out from the drain passage portion of the eye plate, so that the collected matter can be easily removed from the drain plug unit. Further, the shaft may be moved up and down by a lifting mechanism so that the drain plug is moved up and down to a closing position for closing the drain port and an opening position for allowing the drain port to flow.

  Furthermore, the eye plate insertion part may be fixed to the shaft, and the drain plug may be detachably attached to the upper end of the shaft. By removing the drain plug unit from the drain port, removing the drain plug from the shaft, and applying centrifugal force toward the tip of the shaft, it is possible to remove the collected matter such as hair caught on the convex part of the downward projecting part It becomes.

  In addition, the invention of the water tank with a drain plug unit such as a wash bowl, a bathtub, a sink, and the like provided with the drain plug unit also has the above-described actions and effects.

According to the invention which concerns on Claim 1, the drain plug unit which can be made hard to be clogged conventionally can be provided.
In the inventions according to claims 2 and 3, it is possible to easily remove the collected matter.
In the invention according to claim 4, it is possible to easily discard the collected matter.

It is a front view which shows the principal part of the vanity 1 provided with the drain plug unit which concerns on one Embodiment of this invention, and is a figure which abbreviate | omits illustration of the door of the vanity. It is the figure which shows the drain plug unit 10 of the closure state, and its periphery by a partial cross section view. It is the figure which shows the drain plug unit 10 of the open state and its periphery in partial cross section view. It is a side view showing the drain plug unit 10 taken out from the drain port 63. FIG. 3 is an exploded perspective view showing the drain plug unit 10 with the drain plug 14 removed from the shaft 12. FIG. 6 is a perspective view showing an eye plate insertion unit 30. (A) is a plan view showing the drain plug unit 10 with the drain plug 14 not shown, and (b) is a drain plug unit with the illustration of the drain plug 14 omitted after collecting hair H1 and the like. It is a top view which shows 10 seeing from the top. FIG. 3 is a perspective view showing the drain plug unit 10 in an opened state attached to the drain port 63 with the illustration of the drain plug 14 omitted. (A) is a perspective view which shows the eye plate insertion part 130 which concerns on a modification, (b) is a perspective view which shows the eye plate insertion part 230 and the drain plug 14 which concern on a modification. (A) is the side view which shows the drain plug unit 910 which concerns on a prior art example, (b) is the perspective view which shows the hair catcher 920 which concerns on a prior art example, (c) installed the hair catcher 930 which concerns on a prior art example in the drain outlet It is a figure which shows a mode.

(1) Composition of vanity:
In the vanity table 1 shown in FIG. 1, a faucet 90 and a drain pipe unit 60 are attached to a wash bowl 80.
The wash bowl 80 is formed of artificial marble, ceramics, or the like, and has a concave shape that is recessed downward. In the recess 81 of the wash bowl 80, an opening 82 (see FIG. 2) for allowing the drain pipe 62 of the drain pipe unit 60 to pass is formed at the bottom, and an overflow port 83 is formed at the top of the inner surface. The overflow port 83 and the drain pipe unit 60 are connected by an overflow pipe 84.

As shown in FIG. 2, in the drain pipe unit 60, a predetermined lifting mechanism 66 is incorporated in the drain pipe 62, and a wire 68 is connected to the lifting mechanism 66.
The upper end of the drain pipe 62 is disposed in the opening 82 of the wash bowl and serves as a drain outlet 63 through which drainage from the wash bowl recess 81 flows. A drain plug unit 10 is detachably provided to the drain port 63. On the inner surface of the upper portion of the drain pipe 62, a stepped plate latching portion 64 that is stepped for hooking the upper plate 20 of the drain plug unit 10 is formed. The eye plate hooking portion 64 has an inner diameter on the upper side from the step portion that is larger than an inner diameter on the lower side, and places the hook portion 21 of the upper eye plate 20.

The elevating mechanism 66 has a lifting member 67 protruding in a direction toward the lower end of the drain plug unit 10 inserted into the drain pipe 62. The lifting member 67 is movable between a predetermined retracted position that is most retracted as shown in FIG. 2 and a predetermined advanced position that protrudes most and lifts the shaft 12 of the drain plug unit 10 as shown in FIG. Has been.
The wire 68 has an operation unit 69 attached to the wash bowl 80. When the user of the bathroom vanity pulls the operation unit 69, the wire 68 retracts the lifting member 67 to the retracted position, and lowers the shaft 12 to the closing position L <b> 1 where the drain outlet 63 closes the drain outlet 63. On the other hand, when the user presses the operation unit 69, the wire 68 advances the lifting member 67 to the advanced position, raises the drain plug 14, and raises the shaft 12 to the opening position L 2 where the drainage flows into the drain outlet 63. .

(2) Configuration of drain plug unit:
As shown in FIGS. 2 to 5, the drain plug unit 10 of the present embodiment includes a shaft 12, a drain plug 14, an eye plate stopper 16, upper and lower eye plates 20 and 18, and an eye plate insertion portion 30. Yes.
The shaft 12 has a drain plug 14 fixed to the upper end 12a and is inserted into the drain port 63 from the lower end 12b. In the shaft 12 of this embodiment, the eye plate stopper 16 is fixed to the lower end 12 b, and the eye plate insertion portion 30 is fixed immediately below the drain plug 14. The dishes 20 and 18 are slidably attached. The shaft 12 is formed of metal or the like, and is formed into a rod shape such as a column or a cylinder shape such as a cylinder.

In the drain plug 14 of the present embodiment, a shaft insertion hole 14a for inserting the upper end 12a of the shaft is formed on the lower surface side, and a groove 14b for fitting the annular packing 15 circulates around the shaft 12. It is formed in the position to do. When the upper end 12a of the shaft is inserted into the shaft insertion hole 14a, the drain plug 14 and the shaft 12 are fixed to each other. On the other hand, when the drain plug 14 and the shaft 12 fixed to each other are pulled apart, the upper end 12a of the shaft comes out from the shaft insertion hole 14a. Accordingly, the drain plug 14 is detachably attached to the upper end 12a of the shaft. The drain plug 14 is formed of a synthetic resin such as acrylonitrile butadiene styrene resin (ABS resin) at a portion where the shaft insertion hole 14a and the groove 14b are formed, and an upper surface portion is formed of a metal or the like.
The packing 15 fitted in the groove 14b seals between the drain port 63 when closing.

  As shown in FIG. 4, the eye plate stopper 16 has a recess 16 a into which the lower end 12 b of the shaft is press-fitted, and covers the lower end 12 b of the shaft so that the eye plates 20 and 18 do not fall off from the shaft 12. In addition, there exists a scale stopper 16 in the lower part from the dashed-two dotted line shown in FIG. As shown in FIGS. 2 and 3, the eye plate stopper 16 is in contact with the lifting member 67 of the lifting mechanism.

  The upper and lower eye plates 20 and 18 are both slidably attached to the shaft 12 and are movable up and down along the shaft 12 below the drain plug 14 and above the eye plate stopper 16. . The upper pan 20 corresponds to the pan according to the present invention, and has a pan plate latching portion 64, that is, a hook portion 21 that is hooked on the drain outlet 63. On the other hand, the lower plate 18 is configured to move downward without being caught by the plate holding part 64 inside the drain pipe 62.

As shown in FIG. 5 and the like, in the upper pan 20 of the present embodiment, a shaft insertion portion 22 having a shaft insertion hole 22a that penetrates the shaft 12 is formed in the central portion, and drainage is provided around the shaft insertion portion 22. A passage portion 23 is formed.
The inner diameter of the shaft insertion hole 22 a is slightly larger than the outer diameter of the shaft 12. Therefore, the upper eye plate 20 can be rotated about the shaft 12. As shown in FIG. 4, when the drain plug unit 10 is taken out from the drain port 63, the upper pan 20 naturally descends to a position where it overlaps the lower pan 18 that is hooked on the pan stopper 16. Of course, when the drain plug unit 10 is inserted into the drainage port 63, the upper pan 20 is hooked by the pan pan latching portion 64 and upward from the lower pan pan 18, as shown in FIG. Leave.

  The drainage passage portion 23 has a plurality of annular portions 24 and a plurality of bridge portions 25, and passes the drainage downward while collecting foreign matters such as hair contained in the drainage flowing into the drain outlet 63 from the wash bowl 80. Let Each annular portion 24 circulates around the shaft 12, and the outermost annular portion 24 is the uppermost side. A plurality of hook portions 21 are provided on the outer surface of the outermost annular portion 24 so as to protrude radially outward with the shaft 12 as the center. The plurality of bridging portions 25 are provided radially around the shaft 12 so that the angles formed by the adjacent bridging portions 25 are equal to each other, and a plurality of holes 26 through which drainage passes are formed. The insertion part 22 and each annular part 24 are connected. Therefore, the upper pan 20 captures hair or the like with the annular portion 24 and the bridge portion 25 and causes the drainage to flow down from the hole 26. The same number of holes 26 at the same distance from the shaft 12 are formed as the bridging portions 25, and are arranged at equal intervals around the shaft 12.

  The lower eye plate 18 also has a shaft insertion portion 18a having a shaft insertion hole through which the shaft 12 passes, and a drainage passage portion 18b is formed around the shaft insertion portion 18a. Since the inner diameter of the shaft insertion hole is slightly larger than the outer diameter of the shaft 12, the lower eye plate 18 can be rotated around the shaft 12, and above the eye plate stopper 16 and below the upper eye plate 20. It can be moved up and down. The drainage passage portion 18b has a plurality of annular portions 18c and a plurality of bridging portions 18d as shown in FIG. 8, and hair included in the drainage flowing into the drainage pipe 62 from the overflow port 83 via the overflow pipe 84, etc. The waste water and the waste water that has passed through the upper pan 20 are allowed to pass downward through the hole 18e.

  The eye plate insertion part 30 has a plurality of lower protrusions 36 that protrude downward along the longitudinal direction of the shaft 12 below the drain plug 14, and is fixed to the shaft 12 directly below the drain plug 14. As shown in FIG. 6, in the eye plate insertion portion 30 of the present embodiment, a shaft insertion portion 32 having a shaft insertion hole 32 a that penetrates the shaft 12 is formed in the central portion, and a plurality of base portions 34 are formed from the shaft insertion portion 32. Projecting radially, and downward projecting portions 36 project from the tip portions 35 of the respective base portions 34. Since there is no portion that directly connects the lower protrusions 36 to each other, the plurality of lower protrusions 36 are shaped to remove hair and the like more easily than the upper eye plate 20.

The shaft 12 is press-fitted into the shaft insertion hole 32a. As a result, the shaft insertion portion 32 is fixed to the shaft 12. Of course, the shaft insertion portion 32 may be fixed to the shaft 12 using an adhesive or the like. The upper surface of the shaft insertion part 32 is in contact with the drain plug 14.
Each base 34 is formed in a plate shape, and is arranged at equal intervals so that the angles formed by adjacent bases 34 are all equal. The upper surface of each base 34 is a substantially horizontal plane where the shaft insertion portion 32 side is directly below the drain plug 14 and is connected to the upper surface of the shaft insertion portion 32, and the distal end side is connected to the surface of the downward projecting portion 36 opposite to the shaft 12 side. It is a curved surface. The lower surface of each base portion 34 is inclined obliquely toward the distal end portion 35.

The downward projecting portion 36 is formed in a quadrangular prism shape except for the lower end portion, and a plurality of downward projecting portions 36 are provided at intervals around the shaft 12. When the drain plug unit 10 is attached to the drain port 63, the downward projecting portion 36 is provided in the drain port 63. It is inserted into the drainage passage 23 of the upper dish 20 that has been caught. Here, the plurality of lower protrusions 36 surrounding the shaft 12 means that the plurality of lower protrusions 36 are discretely arranged. The interval between the adjacent lower protrusions 36 is an interval at which the hair being drained is caught. Each downward protrusion part 36 of this embodiment is arrange | positioned so that it may insert simultaneously with respect to the separate hole 26 formed in the waste_water | drain passage part 23, as shown to Fig.7 (a).
As shown in FIG. 7B, when the drain plug 14 is omitted and the drain plug unit 10 is viewed from above, a plurality of downward protrusions inserted into the drainage passage 23 around the shaft 12 on the upper pan 20. Foreign matter such as the hair H1 being drained is caught in the outer region R1 which is the outside of the portion 36. Therefore, the hair H1 or the like is hardly included in the inner region R2 that is the inner side of the plurality of downward projecting portions 36 on the upper dish 20. The number of the downward projecting portions 36 provided in the eye plate insertion portion 30 is preferably three or more from the viewpoint of making it difficult for the hair H1 to enter the inner region R2, and the interval between the adjacent downward projecting portions 36 is approximately the center of the shaft 12. 6 or more that is the distance from the lower protrusion 36 to the lower protrusion 36 is more preferable. The upper limit of the number of the downward protrusions 36 provided in the eye plate insertion part 30 may be the number that drainage passes between the adjacent downward protrusions 36. Therefore, the number of the downward projecting portions 36 provided in the eye plate insertion portion 30 may be the same as the number of the bridge portions 25 of the upper eye plate in the present embodiment.

  As shown in FIG. 4 and the like, at the lower end of each downward protruding portion 36, the direction D1 opposite to the shaft 12, that is, the outside of the plurality of downward protruding portions 36 inserted into the drainage passage portion 23 surrounding the shaft 12 is inserted. Convex portions 37 that are convex are provided. Each convex part 37 of this embodiment is bent and protrudes in the direction which becomes a little diagonally upward from the lower end of the downward protrusion part 36 which protruded below. As a result, when the drain plug unit 10 is taken out from the drain port 63 and the entire downward projecting portion 36 comes out from the drain passage portion 23, the collected matter such as the hair H1 is easily caught by the convex portion 37, and is collected from the drain plug unit 10. The collection is easy to remove.

As shown in FIGS. 2 and 3, each of the downward projecting portions 36 of the present embodiment has a lower end (convex portion 37) that has a hole 26 in the upper pan 20 when the drain plug unit 10 is attached to the drain port 63. It is designed to go down through. That is, even when the drain plug unit 10 is in the open state shown in FIGS. 3 and 8, each downward projecting portion 36 is in a state of passing through the drain passage portion 23 of the upper pan 20. On the other hand, as shown in FIG. 4, when the drain plug unit 10 is removed from the drain outlet 63, the upper pan 20 moves downward and the entire lower protrusion 36 is removed from the hole 26 of the upper pan 20.
In the eye plate insertion portion 30 of the present embodiment, the number of combinations of the downward projecting portion 36 and the base portion 34 is half the number of the bridge portions 25. Of course, the number of combinations of the downward projecting portion 36 and the base portion 34 can be various numbers such as the same number as the bridge portion 25.

  The eye plate stopper 16, the lower eye plate 18, the upper eye plate 20, and the eye plate insertion portion 30 can be formed of a synthetic resin such as ABS resin.

The drain plug unit 10 described above can be assembled as follows, for example.
First, the countersink stopper 16 is attached to the lower end 12b of the shaft, and the upper end 12a of the shaft is passed through the shaft insertion hole of the lower sample pan shaft insertion portion 18a and then passed through the shaft insertion hole 22a of the upper sample pan shaft insertion portion 22. Next, the upper end 12 a of the shaft is press-fitted into the shaft insertion hole 32 a of the eye plate insertion portion, and the eye plate insertion portion is inserted at the position where the lower protrusion 36 is inserted into the drainage passage portion 23 of the upper eye plate caught by the drain port 63. 30 is fixed to the shaft 12. Then, when the drain plug 14 is attached to the upper end 12a of the shaft, the assembly of the drain plug unit 10 is completed.
Of course, the assembly of the drain plug unit 10 can be performed by various procedures. For example, the eye plate insertion part 30 is first fixed to the shaft 12, and the lower end 12b of the shaft is passed through the shaft insertion hole 22a of the upper eye plate 20, and then passed through the shaft insertion hole of the lower eye plate 18, to the lower end 12b of the shaft. The eye plate stopper 16 may be attached, and the drain plug 14 may be attached to the upper end 12a of the shaft.

(3) Operation, action and effect of drain plug unit:
Next, operation | movement, an effect | action, and effect of this drain plug unit 10 are demonstrated.
When the drain plug unit 10 is held by hand and inserted into the drain port 63 from the side of the eye plate stopper 16, the water tap unit 10 is lowered until the eye plate stopper 16 contacts the lifting member 67 of the lifting mechanism. At this time, the lower eye plate 18 passes through the eye plate retaining portion 64, while the upper eye plate 20 stays at the drain outlet 63 with the hook portion 21 being caught by the eye plate retaining portion 64. And each downward protrusion part 36 provided in the position surrounding the axis | shaft 12 is inserted in the hole 26 of an upper plate drainage passage part from a lower end. Depending on the rotational position of the upper pan 20 around the shaft 12, the lower end of each downward projection 36 may contact the bridge 25 of the upper pan. In such a case, the upper pan 20 Rotating about the shaft 12, the lower end of each downward protrusion 36 is inserted into the hole 26 in the upper pan drainage passage.

  Here, when the operation unit 69 is pulled as shown in FIG. 2, the lifting member 67 is retracted to the retracted position, and the shaft 12 to which the drain plug 14, the eye plate stopper 16 and the eye plate insertion portion 30 are fixed. Is the closing position L1. When the user of the vanity unit 1 presses the operation unit 69 from this state, as shown in FIG. 3, the lifting member 67 advances to the advance position, and the drain plug 14, the eye plate stopper 16, and the eye plate insertion part 30 are moved. The fixed shaft 12 moves up to the opening position L2. Of course, when the user pulls the operating portion 69 from this state, the lifting member 67 is retracted to the retracted position, and the shaft 12 is lowered to the closing position L1.

As shown in FIG. 3, when the shaft 12 is at the opening position L <b> 2, the drainage water W <b> 1 in the wash bowl recess 81 flows into the drainage pipe 62 along the inner surface of the drainage port 63. Since the upper surface of the base 34 of the eye plate insertion portion is directly below the drain plug 14, foreign matter such as hair H1 in the drainage W1 is not easily caught on the upper surface of the base 34. The drainage water W1 that has flowed into the drainage pipe 62 passes through the hole 26 of the upper eyeglass drainage passage portion. At this time, the hair H1 and the like contained in the waste water W1 passing through the outer region R1 shown in FIG. 7B on the upper pan 20 is caught by the annular portion 24 and the bridge portion 25, and is deposited on the outer region R1. To go. On the other hand, the hair H1 and the like contained in the waste water W1 flowing into the space between the lower protrusions 36 from the outside to the inside and passing through the inner region R2 of the upper dish 20 are caught outside the plurality of the lower protrusions 36, Deposits on the region R1. In any case, as shown in FIG. 8, the collected matter such as the hair H1 accumulates on the outer region R1 on the upper dish 20. That is, the upper eye plate 20 and the plurality of downward projecting portions 36 cooperate to collect foreign substances such as hair H1.
The drainage that has passed through the upper pan 20 passes through the lower pan 18 and flows down in the drain pipe 62.

Here, the plurality of downward projecting portions 36 surrounding the shaft 12 are not umbrella-shaped as a whole but project downward along the shaft 12. Therefore, even if the collected matter accumulates in the outer region R1, the inner region R2 that is inside the plurality of downward projecting portions 36 can pass through for a while, and the collected matter that has accumulated on the upper pan 20 is collected. It is difficult for the area of the water-permeable region in the upper edge portion to be smaller than the area of the inner region R2 shown in FIG.
It is assumed that the water-permeable region is a region when a vertical cross section with respect to the shaft 12 is viewed.

  Since the area of the water-permeable region that is the inside of the plurality of downward projecting portions 36 is difficult to be reduced, it takes a long time to maintain good drainage capacity. Therefore, the drain plug unit 10 can be made less clogged than before, and the frequency of cleaning can be reduced.

  When the user takes out the drain plug unit 10 that has collected the hair H1 and the like from the drain port 63, as shown in FIG. Naturally escapes from the hole 26 in the upper eye plate drainage passage. Since the eye plate insertion part 30 and the upper eye plate 20 are naturally separated in this way, the collected matter can be easily removed from the drain plug unit 10. Further, the collected matter such as the hair H <b> 1 that was on the outer region R <b> 1 of the upper eye plate 20 is caught by the convex portion 37 and gathered around the plurality of downward projecting portions 36. Since the hair H1 and the like are attached to the plurality of downward projecting portions 36 having a shape that makes it easier to remove hair or the like than the upper pan 20, the collected matter can be easily removed from the drain plug unit 10 in this respect as well. The collected matter can be removed without making the hands as dirty as possible.

  Further, the eye plate insertion portion 30 is fixed to the shaft 12, and the drain plug 14 is detachably attached to the shaft 12. Therefore, when the user removes the drain plug 14 from the shaft 12 as shown in FIG. 5, the user taps the drain plug unit 10 so as to apply a centrifugal force toward the upper end 12 a of the shaft. The collected matter can be removed from. Therefore, it is easy to throw away the collected matter from the drain plug unit 10, and the collected matter can be removed without making the hand as dirty as possible.

  Note that the user may repeatedly pull or push the operation unit 69 before removing the drain plug unit 10 from the drain port 63. Then, the effect which makes it easy to take out the adhesive substance adhering to the upper eye plate 20 and the downward protrusion part 36 is anticipated.

(4) Modification:
Various variations of the drain plug unit of the present invention are conceivable.
For example, a shaft insertion portion 132 having a shaft insertion hole is formed in the central portion like the eye plate insertion portion 130 shown in FIG. 9A, and a plurality of base portions 134 project in an umbrella shape from the shaft insertion portion 132, A downward projecting portion 136 may project from the distal end portion 135 of each base portion 134. At the lower end of each downward projecting portion 136, a convex portion 137 that is convex in the direction opposite to the axis of the drain plug unit is provided. Also in this modification, since each downward protrusion part 136 protrudes below along the axis | shaft of a drain plug unit, the area of the area | region which can be permeated | transmitted inside the several downward protrusion part 136 cannot become small easily. Therefore, the effect of making clogging less likely than before is obtained. In addition, since the upper surface of each base portion 134 is obliquely lowered toward the distal end portion 135, even if foreign matter such as hair enters the upper surface of the base portion 134, it easily falls to the outside of the plurality of downward projecting portions 136.

  Moreover, like the eye plate insertion part 230 shown in FIG.9 (b), you may fix to the drain plug 14 instead of the axis | shaft of a drain plug unit. The main dish insertion portion 230 has a plurality of downward projecting portions 236 that project downward from the lower surface 14 c of the drain plug 14. A convex portion 237 that is convex in a direction opposite to the axis of the drain plug unit is provided at the lower end portion of each downward projecting portion 236. Also in this modification, since each downward protrusion part 236 protrudes below along the axis | shaft of a drain plug unit, the area of the area | region which can be permeated | transmitted inside the several downward protrusion part 236 is hard to become small. Therefore, the effect of making clogging less likely than before is obtained.

Further, the shaft insertion portions 18 a and 22 of the eye plates 18 and 20 may have a shape in which a part around the shaft 12 is cut away. The shaft insertion portions 32 and 132 of the eye plate insertion portion may also have a shape in which a part around the shaft 12 is cut away.
The interval between the holes 26 in the upper pan around the shaft 12 may not be equal. The intervals between the lower protrusions 36 around the shaft 12 may not be equal.
The drainage passage portion 23 of the upper pan is not limited to being formed by the plurality of holes 26 and may be formed by a plurality of gaps. For example, if only the radial part corresponding to the bridge part without the annular part is provided in the drainage passage part, a gap in which the downward projecting part is inserted is formed between the adjacent radial parts. Moreover, the number of the bridge portions 25 may be reduced from the drainage passage portion 23 described above, and a gap may be formed between the annular portions 24.

The convex portions 37, 137, and 237 of the downward projecting portion may have a shape that bulges in a direction opposite to the axis of the drain plug unit. Further, the lower end portion of the downward projecting portion may be convex in a direction other than the direction opposite to the axis of the drain plug unit.
The lower end portions of the downward projecting portions 36, 136, and 236 may be in a hole or a gap of the upper pan drainage passage portion when the shaft 12 is at the opening position L2.

  The shaft 12 of the drain plug unit 10 when attached to the drain port 63 may be displaced from the strict vertical direction. Accordingly, the protruding directions of the downward protruding portions 36, 136, and 236 include directions that deviate from the strict vertical direction. Of course, the protruding directions of the downward protruding portions 36, 136, and 236 include directions that deviate from the exact longitudinal direction of the shaft 12.

Even in the drain plug unit in which the drain plug 14 cannot be removed from the shaft 12, the collected matter is collected around the plurality of downward projecting portions 36, 136, 236 by the convex portions 37, 137, 237. The effect of facilitating removal is obtained. Moreover, even if there are no convex parts 37, 137, 237, the plurality of downward projecting parts 36, 136, 236 surround the shaft 12 and are inserted into the drainage passage part 23, thereby making it less likely to be clogged than before. Is obtained.
Even the drain plug unit without the above-described eye plate stopper 16 and the lower eye plate 18 can achieve the above-described effects.

As described above, the present invention can provide a useful drain plug unit and a wash bowl with a drain plug unit. The present invention is applicable to a bathtub with a drain plug unit, a sink with a drain plug unit, and the like.
Furthermore, the present invention is not limited to the above-described embodiments and modifications, and the configurations disclosed in the above-described embodiments and modifications are mutually replaced, the combinations are changed, known techniques, and the above-described configurations. Configurations in which the respective configurations disclosed in the embodiment and the modified examples are mutually replaced or combinations are changed are also included.

1 ... Vanity, 10 ... Drain plug unit,
12 ... shaft, 12a ... upper end, 12b ... lower end,
14 ... Drain plug, 14a ... Shaft insertion hole, 14c ... Bottom surface,
16 ... Eye plate stopper,
18 ... Lower eye plate, 18a ... Shaft insertion part,
20 ... Upper pan, 21 ... Hook, 22 ... Shaft insertion part, 22a ... Shaft insertion hole,
23 ... Drain passage part, 24 ... Ring part, 25 ... Bridge part, 26 ... Hole,
30, 130, 230 ... eye plate insertion part,
32, 132 ... shaft insertion part, 32a ... shaft insertion hole,
34, 134 ... base, 35, 135 ... tip,
36, 136, 236 ... downward projecting portion, 37, 137, 237 ... convex portion,
60 ... Drain pipe unit,
62 ... Drain pipe, 63 ... Drain port, 64 ... Eye plate hanging part,
66 ... Lifting mechanism, 67 ... Lifting member,
68 ... wire, 69 ... operation part,
80 ... Washing bowl,
H1 ... hair, L1 ... closed position, L2 ... opened position,
R1 ... outer region, R2 ... inner region, W1 ... drainage.

Claims (4)

A drain plug unit that is detachably attached to the drain port,
A drain plug,
A shaft that is fixed to the upper end of the drain plug and inserted into the drain port from the lower end;
A drainage passage portion that has a hooking portion that catches on the drainage port and that allows the drainage to pass downward while collecting hair, is slidably attached to the shaft, and is vertically moved below the drainage plug. A movable eye plate,
A plurality of downward projecting portions projecting downward on the lower side of the drain plug and inserted into the drainage passage portion of the eye plate caught in the drain port are provided at intervals in positions surrounding the shaft. An eye plate insertion part fixed to the shaft or the drain plug,
A drain plug unit characterized in that hair being drained is caught on the outside of the plurality of downward projecting portions inserted into the drain passage portion so as to surround the shaft.   The drain plug unit according to claim 1, wherein a projecting portion that is convex in a direction opposite to the axis is provided at a lower end portion of the downward projecting portion.   A lower end portion of the downward projecting portion is inserted into a drainage passage portion of the eye plate when the drain plug unit is attached to the drain port, and when the drain plug unit is removed from the drain port, the eye plate The drainage plug unit according to claim 1 or 2, wherein the drainage plug unit exits from the drainage passage portion. The eye plate insertion part is fixed to the shaft,
The drain plug unit according to claim 2, wherein the drain plug is detachably attached to an upper end of the shaft.

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